Mum, do you mind my listening to music for a while— . But please listen to it with your earphone.

, the great mother, in order to save her sick child, kept waiting for four hours in the heavy snow.

How do you study ______ a test ——I study _____working _____a group.

193. What they need at present _______science and technology.

Why didn’t you apologize to her —She drove away ______ I could say a word